3588515

Information

• Patent Grant
• 3588515

• References
• Source

• Patent Number

  3,588,515

• Date Filed

  Not available

• Date Issued

  Monday, June 28, 1971
  54 years ago

• CPC

  • G05B11/017 - using photo-electric means

• US Classifications

  • 250 - Radiant energy
  • 324 - Electricity: measuring and testing
  • 353 - Optics: image projectors
  • 361 - Electricity: electrical systems and devices